bolt/test/RISCV/fake-label-no-entry.c

   1 /// Verify that unnamed symbols are not added as function entry points. Such
   2 /// symbols are used by relocations in debugging sections.
   3
   4 // clang-format off
   5
   6 // RUN: %clang %cflags -g -Wl,-q -o %t %s
   7
   8 /// Verify that the binary indeed contains a fake label ".L0 " at _start.
   9 // RUN: llvm-readelf -s %t | FileCheck %s --check-prefix=CHECK-ELF
  10 // CHECK-ELF-DAG: [[#%x,START:]] {{.*}} FUNC GLOBAL DEFAULT [[#%d,SECTION:]] _start{{$}}
  11 // CHECK-ELF-DAG: [[#%x,START]] {{.*}} NOTYPE LOCAL DEFAULT [[#SECTION]] .L0 {{$}}
  12
  13 /// Verify that BOLT did not create an extra entry point for the fake label.
  14 // RUN: llvm-bolt -o %t.bolt %t --print-cfg | FileCheck %s
  15 // CHECK: Binary Function "_start" after building cfg {
  16 // CHECK:  IsMultiEntry: 0
  17
  18 void _start() {}